Inflation valve with improved structure

Abstract

An inflation valve with an improved structure comprises a valve shell and a valve cover, the valve shell comprises an inner shell and an outer shell which are in threaded connection, and the inflation valve is characterized in that an annular wall is arranged in the inner shell, an annular end is arranged on the radial outer side of the annular wall, a plurality of convex ribs distributed at intervals are arranged between the annular wall and the inner wall of the end, and the convex ribs are connected with the valve cover. One end of each convex rib is connected with the ring wall, and the other end of each convex rib is disconnected with the inner wall of the end part, or one end of each convex rib is connected with the inner wall of the end part, and the other end of each convex rib is disconnected with the ring wall. Compared with the prior art, the inflation valve has the advantages that a certain gap is formed between the convex rib and the annular wall or the end part in the inflation valve, a certain deformation space is provided for cold shrinkage of the convex rib after injection molding, so that irregular deformation of the annular wall or the end part after injection molding is avoided, the assembly effect of the inner shell is further ensured, and the use effect of the inflation valve is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to a valve utensil technical field especially, it relates to a structure improved inflation valve. BACKGROUND

[0002] More large -scale need to inflate the equipment such as inflatable bed, inflatable boat and set up inflation valve on it. The conventional inflation valve includes the shell, the shell has the working cavity with the working environment and the air inlet cavity with the outside world, the working cavity and the air inlet cavity are communicated with each other through the valve port, and the one-way inflation valve core assembly is arranged at the valve port position. The existing inflation valve such as patent application number CN202020974374.4 (authorized announcement number CN212389809U) of Chinese utility model "a kind of inflation valve" is shown, the inflation valve includes inner shell and outer shell, inner shell has inflation chamber and inflation valve port, inflation chamber has annular first peripheral wall, inner shell includes the valve body portion located at the radial outer side of first peripheral wall, first peripheral wall and the inner peripheral wall between valve body portion are connected by multiple protruding parts, multiple protruding parts are arranged at intervals, and protruding part is used to cooperate with valve wrench, and inflation valve is installed on inflatable product.

[0003] Although the above-mentioned inflation valve can be installed on inflatable product, the protruding part of the inflation valve and the inner peripheral wall between the first peripheral wall and the valve body portion are an integral structure formed by injection molding, the temperature of the integral structure is high during injection molding, when the operator takes out the integral structure after injection molding, the temperature of the integral structure is rapidly reduced, part of the protruding part in the integral structure is prone to shrink, thereby causing irregular deformation of the annular first peripheral wall or the valve body portion, and further affecting the assembly effect of the integral structure. Therefore, the inflation valve needs to be further improved. SUMMARY

[0004] The utility model provides a kind of inflation valve with better assembly effect and structure improvement to solve the technical problems of the above prior art status.

[0005] The technical scheme for solving the above technical problems of the utility model is as follows: the structure improved inflation valve, including valve shell and valve cover, the valve shell includes screw connection inner shell and outer shell, characterized in that: the inner shell has annular ring wall, the radial outer side of the ring wall is provided with annular end, multiple interval distribution's reinforcing ribs are arranged between the inner wall of the ring wall and the end, one end of the reinforcing rib is connected with the ring wall, and the other end is disconnected with the inner wall of the end, or one end of the reinforcing rib is connected with the inner wall of the end, and the other end is disconnected with the ring wall.

[0006] Further, the inner shell has an upper air chamber and a valve port, the inner shell is installed in the concave cavity of the outer shell, the concave cavity of the outer shell has a lower air chamber, the upper air chamber and the lower air chamber are communicated through the valve port, and the valve port is provided with a charging one-way valve core assembly. The charging one-way valve core assembly can make external gas flow into the charging product from the upper air chamber, the valve port and the lower air chamber in sequence, and the charging one-way valve core assembly can prevent the gas in the charging product from flowing out of the charging valve.

[0007] Further, the charging one-way valve core assembly comprises a valve rod penetrating through the valve port and a sealing part installed at the lower end of the valve rod and located in the lower air chamber, the sealing part is used for blocking the valve port, the sealing part comprises a sealing cover and a sealing gasket installed on the sealing cover, the upper end of the sealing gasket is provided with a stepped installation groove, the lower end of the valve rod is provided with a connecting part corresponding to the installation groove, the connecting part is in abutment with the installation groove, so that the valve rod presses the sealing gasket on the sealing cover. The sealing cover is fixedly connected with the lower end of the valve rod, a user can drive the valve rod to switch between the two states of opening and closing the valve port, the valve rod drives the sealing part to open the valve port, external gas can flow into the charging product from the valve port, and the valve rod also drives the sealing part to block the valve port, that is, the sealing gasket is deformed to block the valve port, the cooperation of the stepped installation groove and the connecting part makes the contact area of the sealing gasket with the valve rod larger, so that the sealing gasket is pressed more firmly.

[0008] In order to make the valve rod open or close the valve port, preferably, the valve rod is provided with two followers with sliding grooves, the two followers form a plurality of circumferentially spaced low-position grooves and high-position grooves on the valve rod, the charging one-way valve core assembly further comprises a blocking part, a tooth ring and a fixing part, the blocking part is sleeved on the valve rod and can move up and down along the valve rod, the lower end of the blocking part is provided with a plurality of circumferentially spaced driving blocks, the driving blocks can drive the valve rod to rotate by means of the followers, the tooth ring is fixed in the inner shell by the fixing part, the inner circumferential wall of the tooth ring is provided with at least two protruding teeth extending to the center of the tooth ring, and the protruding teeth can switch between the low-position grooves and the high-position grooves, so that the valve rod switches between opening and closing the valve port. The charging one-way valve core assembly further comprises a spring, the spring is sleeved on the valve rod and located in the upper air chamber, the two ends of the spring abut against the valve port and the blocking part, so that the sealing part has a tendency to keep moving upward to block the valve port, when the protruding teeth of the tooth ring are located in the low-position grooves, the sealing part blocks the valve port under the action of the spring, the valve rod closes the valve port, and when the blocking part moves downward under the action of an external force, the driving blocks of the blocking part contact the followers to drive the followers to rotate and move downward, so that the protruding teeth of the tooth ring switch from the low-position grooves to the high-position grooves, and at this time, the valve rod is in the state of opening the valve port.

[0009] In order to avoid impurities in the inflating product from entering the inflating valve, preferably, a plurality of air permeable holes are arranged on the peripheral wall of the shell in an axial direction and are arranged at intervals in a circumferential direction, a filter cover is sleeved on the peripheral wall of the shell, the filter cover comprises a frame and a filter screen with meshes, the filter screen is embedded on the peripheral wall and the bottom of the frame, and the air permeable holes are covered by the filter screen. The filter screen of the filter cover can prevent impurities from entering the inflating valve through the air permeable holes, and the frame provides support for the filter screen, so that the filter screen can cover the air permeable holes of the shell.

[0010] In order to facilitate the sealing connection of the inflating valve and the inflating product, preferably, the shell is made of hard plastic, and a lower shell made of soft plastic is sleeved on the peripheral wall of the shell, and the peripheral wall of the lower shell extends horizontally and outwardly to form an annular fusion edge, which is used for connecting and sealing the lower shell and the inflating product. The lower shell made of soft plastic facilitates the welding of the lower shell and the inflating product, and the shell made of hard plastic ensures the strength of the structure of the inflating valve, and the lower shell is installed in the inflating product as an insert through the fusion edge.

[0011] Compared with the prior art, the inflating valve has the advantages that: the convex ribs have a certain gap with the annular wall or the end portion, which provides a certain deformation space for the cold shrinkage of the convex ribs after injection molding, thereby avoiding irregular deformation of the annular wall or the end portion after injection molding, and further ensuring the assembly effect of the inner shell and the use effect of the inflating valve. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 FIG. 1 is a structural schematic view of the inflating valve according to the embodiment 1 of the present application;

[0013] Figure 2 FIG. 2 is an exploded schematic view of the inflating valve according to the embodiment 1 of the present application;

[0014] Figure 3 FIG. 3 is a structural schematic view of the inner shell in the inflating valve according to the embodiment 1 of the present application;

[0015] Figure 4 FIG. 4 is an exploded schematic view of the inflating one-way valve core assembly in the inflating valve according to the embodiment 1 of the present application;

[0016] Figure 5 FIG. 5 is a sectional view of the inner shell and the inflating one-way valve core assembly in the inflating valve according to the embodiment 1 of the present application;

[0017] Figure 6 FIG. 6 is a sectional view of the inner shell and the inflating one-way valve core assembly in the inflating valve according to the embodiment 1 of the present application from another perspective;

[0018] Figure 7 FIG. 7 is a structural schematic view of the inflating valve according to the embodiment 2 of the present application;

[0019] Figure 8 FIG. 8 is an exploded schematic view of the inflating valve according to the embodiment 2 of the present application. DETAILED DESCRIPTION

[0020] The utility model will be described in further detail below in conjunction with the drawings.

[0021] As Figures 1-6 shown, it is the utility model embodiment 1.

[0022] The inflation valve of the embodiment comprises a valve shell 1, a valve cover 2, an inflation one-way valve core assembly 3 and a filter cover 4, the valve cover 2 is arranged at the upper end of the valve shell 1, the valve shell 1 comprises a inner shell 11 and an outer shell 12 connected by screw thread, wherein the inner shell 11 has an upper air chamber A and a valve port B, the inner shell 11 is installed in the concave cavity of the outer shell 12, the concave cavity of the outer shell 12 has a lower air chamber C, the upper air chamber A and the lower air chamber C are communicated by the valve port B, the inflation one-way valve core assembly 3 is arranged at the valve port B, the inflation one-way valve core assembly 3 can make the external gas flow into the inflation product from the upper air chamber A, the valve port B and the lower air chamber C in turn, and the inflation one-way valve core assembly 3 can avoid the gas in the inflation product from flowing out of the inflation valve. In addition, a plurality of air holes 121 are arranged on the peripheral wall of the outer shell 12 in the embodiment, the air holes 121 are arranged axially and are arranged along the circumference at intervals, the filter cover 4 is arranged on the outer peripheral wall of the outer shell 12, the filter cover 4 comprises a frame 41 and a filter screen 42 with mesh, the filter screen 42 is embedded on the peripheral wall and the bottom of the frame 41, so that the air holes 121 are covered by the filter screen 42, the filter screen 42 of the filter cover 4 can prevent impurities from entering the inflation valve through the air holes 121, and the frame 41 provides support for the filter screen 42, so that the filter screen 42 can cover the air holes 121 of the outer shell 12.

[0023] As Figure 3 shown, the inner shell 11 of the embodiment has an annular wall 111, the radial outer side of the annular wall 111 is provided with an annular end portion 112, a plurality of convex ribs 113 are arranged at intervals between the annular wall 111 and the inner wall of the end portion 112, one end of the convex rib 113 is connected with the inner wall of the end portion 112, and the other end of the convex rib 113 is disconnected with the annular wall 111, that is, the convex rib 113 has a certain gap with the annular wall 111, so as to provide a certain deformation space for the cold shrinkage of the convex rib 113 after injection molding, thereby avoiding irregular deformation of the annular wall 111 and the end portion 112 after injection molding, and further ensuring the assembly effect of the inner shell 11.

[0024] As Figures 4-6As shown, the inflating one-way valve core assembly 3 of the embodiment includes a valve rod 31, a sealing part 32, a blocking part 33, a tooth ring 34, a fixing part 35, and a spring. The valve rod 31 is arranged through the valve port B. The sealing part 32 is arranged at the lower end of the valve rod 31. The lower end of the valve rod 31 and the sealing part 32 are located in the lower air chamber C. The sealing part 32 is used to block the valve port B. The sealing part 32 includes a sealing cover 321 and a sealing pad 322 arranged on the sealing cover 321. The upper end of the sealing pad 322 is provided with a stepped mounting groove 322a. The lower end of the valve rod 31 is provided with a connecting part 311 corresponding to the mounting groove 322a. The connecting part 311 abuts against the mounting groove 322a, so that the valve rod 31 presses the sealing pad 322 on the sealing cover 321. Through the cooperation of the stepped mounting groove 322a and the connecting part 311, the contact area between the sealing pad 322 and the valve rod 31 is larger, and the sealing pad 322 is pressed more firmly. In addition, the valve rod 31 of the embodiment is provided with two followers 312 with sliding grooves. The two followers 312 form a plurality of circumferentially spaced low-position grooves 313 and high-position grooves 314 on the valve rod 31. The blocking part 33 is sleeved on the valve rod 31 and can move up and down along the valve rod 31. The lower end of the blocking part 33 is provided with a plurality of circumferentially spaced driving blocks 331. The driving blocks 331 can drive the valve rod 31 to rotate by means of the followers 312. The spring is sleeved on the valve rod 31 and located in the upper air chamber A. The two ends of the spring abut against the valve port B and the blocking part 33, so that the sealing part 32 has a tendency to move upward to block the valve port B. The tooth ring 34 is fixed in the inner shell 11 by the fixing part 35. The inner circumferential wall of the tooth ring 34 is provided with at least two protruding teeth 341 extending to the center of the tooth ring 34. The protruding teeth 341 can switch between the low-position grooves 313 and the high-position grooves 314, so that the valve rod 31 switches between opening and closing the valve port B.

[0025] The working process of the embodiment is as follows:

[0026] A. When the inflating valve is in a natural state, the protruding teeth 341 of the tooth ring 34 are located in the low-position grooves 313. Under the action of the spring, the valve rod 31 drives the sealing part 32 to block the valve port B. The inflating one-way valve core assembly 3 is in a state of closing the valve port B. The upper air chamber A and the lower air chamber C are not communicated. At this time, the inflating valve does not inflate, and there is no air leakage.

[0027] B. When the inflating valve needs to inflate the inflating product, an external force is applied to the blocking part 33 to move the blocking part 33 downward. The driving blocks 331 of the blocking part 33 contact the followers 312 to drive the followers 312 to rotate and move downward, so that the protruding teeth 341 of the tooth ring 34 switch from the low-position grooves 313 to the high-position grooves 314. At this time, the valve rod 31 of the inflating one-way valve core assembly 3 is in a state of opening the valve port B, so that the upper air chamber A and the lower air chamber C are communicated with each other through the valve port B. The inflating valve is in an inflating state.

[0028] As Figure 7and Figure 8 As shown in the embodiment 2 of the utility model.

[0029] The embodiment 2 is basically same with the embodiment 1, the difference lies in: the shell 12 of this embodiment is made of hard plastic, the bottom of the shell 12 is equipped with the first through hole of ventilation, the outer peripheral wall of the shell 12 is equipped with the lower casing 5 made of soft plastic, the lower casing 5 is equipped with the second through hole corresponding with the first through hole, the inflatable product is communicated with the lower air chamber C through the second through hole and the first through hole, the outer peripheral wall of the lower casing 5 extends horizontally outward and forms the annular fusion edge 51, the fusion edge 51 is used for connecting and sealing the lower casing 5 with the inflatable product.

Claims

1. A structurally improved inflation valve comprising a valve housing (1) and a valve cover (2), said valve housing (1) comprising a threaded inner housing (11) and an outer housing (12), characterized in that: The inner shell (11) has a ring wall (111) in the shape of a ring, a radially outer side of the ring wall (111) is provided with an end portion (112) in the shape of a ring, a plurality of spaced apart ribs (113) are arranged between the ring wall (111) and the inner wall of the end portion (112), one end of the rib (113) is connected with the ring wall (111), and the other end is disconnected with the inner wall of the end portion (112), or one end of the rib (113) is connected with the inner wall of the end portion (112), and the other end is disconnected with the ring wall (111).

2. An inflation valve according to claim 1, characterised in that: The inner shell (11) has an upper air chamber (A) and a valve port (B), the inner shell (11) is installed in the recess of the outer shell (12), the recess of the outer shell (12) has a lower air chamber (C), the upper air chamber (A) and the lower air chamber (C) are communicated through the valve port (B), and the valve port (B) is provided with a charging one-way valve core assembly (3).

3. An inflation valve according to claim 2, wherein: The charging one-way valve core assembly (3) comprises a valve rod (31) penetrating the valve port (B) and a sealing part (32) installed at the lower end of the valve rod (31) and located in the lower air chamber (C), the sealing part (32) is used to block the valve port (B), the sealing part (32) comprises a sealing cover (321) and a sealing gasket (322) installed on the sealing cover (321), the upper end of the sealing gasket (322) is provided with a stepped mounting groove (322a), the lower end of the valve rod (31) is provided with a connecting part (311) corresponding to the mounting groove (322a), the connecting part (311) abuts against the mounting groove (322a), so that the valve rod (31) presses the sealing gasket (322) on the sealing cover (321).

4. An inflation valve according to claim 3, wherein: The valve rod (31) is provided with two followers (312) with sliding grooves, the two followers (312) form a plurality of circumferentially spaced apart low slots (313) and high slots (314) on the valve rod (31), the charging one-way valve core assembly (3) further comprises a gear (33), a tooth ring (34) and a fixing part (35), the gear (33) is sleeved on the valve rod (31) and can move up and down along the valve rod (31), the lower end of the gear (33) is provided with a plurality of circumferentially spaced apart driving blocks (331), the driving blocks (331) can drive the valve rod (31) to rotate by means of the followers (312), the tooth ring (34) is fixed in the inner shell (11) by the fixing part (35), the inner circumferential wall of the tooth ring (34) is provided with at least two protruding teeth (341) extending to the center of the tooth ring (34), the protruding teeth (341) can switch between the low slots (313) and the high slots (314), so that the valve rod (31) switches between opening and closing the valve port (B).

5. The inflation valve of claim 1, wherein: The outer shell (12) is provided with a plurality of axial and circumferentially spaced air holes (121), and a filter cover (4) is sleeved on the outer circumferential wall of the outer shell (12), the filter cover (4) comprises a frame (41) and a filter screen (42) with mesh, and the filter screen (42) is embedded on the circumferential wall and the bottom of the frame (41), so that the air holes (121) are covered by the filter screen (42).

6. The inflation valve of claim 1, wherein: The outer shell (12) is made of hard plastic, and a lower shell (5) made of soft plastic is sleeved on the outer circumferential wall of the outer shell (12), the outer circumferential wall of the lower shell (5) extends horizontally outward to form an annular fusion edge (51), and the fusion edge (51) is used for connecting and sealing the lower shell (5) with the inflatable product.

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